GCN Circular 11056
Subject
GRB 100805A: GRAS 002 optical observations
Date
2010-08-05T08:40:39Z (14 years ago)
From
Veli-Pekka Hentunen at Taurus Hill Obs,A95 <veli-pekka.hentunen@kassiopeia.net>
Markku Nissinen (Taurus Hill Observatory) and Veli-Pekka Hentunen (Taurus
Hill Observatory) report:
We used Global-rent-a-scope GRAS 002 Tak Mewlon 300 telescope with SBIG
ST-8E CCD at RAS Observatory Mayhill H06 (New Mexico, USA) for follow-up
observations of GRB 100805A (D. Palmer et al., GCN 11047). The observations
were started on August 05, at 04:56 UTC (44 min after the burst) and stopped
on August 05, at 06:29 UTC. Four luminance 600 seconds images and three optical
R-band 600 seconds images were taken. We detected a very dim optical afterglow
object at the position of RA 19h 59min 30s.64 and DEC +52o 37' 40".5 with
respect to POSSII F/USNO-B1.0 (J2000) which is in good correlation with
S.B. Cenko observations (GCN 11050). Upper limit for our luminance observations
is >20.8 mag (LR) and R-band observations is >20.1 (R). Quoted upper limit has
been derived using POSSII F and USNO-B1.0 field stars as reference.
Filter Tmid(s) Exp(s) OA Mag USNO-B1.0
luminance 2949 600 19.6+/-0.5 (LR)
luminance 3614 600 19.6+/-0.5 (LR)
luminance 4276 600 19.8+/-0.5 (LR)
luminance 8177 600 >20.8
optical R 5299 600 >20.1
optical R 5986 600 >20.1
optical R 7501 600 >20.1
URL-link to our luminance image:
http://cutenews.kassiopeia.net/data/upimages/GRB100805A_web.jpg
